Effects of different irrigation levels on the Mediterranean corn borer (Sesamia nonagrioides lefebvre), efropean corn borer (Ostrinia nubilalis Hfbner) popflations and effects of proline content in corn borer preferences

Abstract

In this study, the effects of different irrigation treatments (I100, I70, I35) on the Mediterranean corn borer (Sesamia nonagrioides lefebvre) and on the European corn borer (Ostrinia nubilalis hübner) populations in different sweet corn (Zea mays saccharataSturt) lines (1025x1026 ÇADA 13, MERIT, 1023X1024 ÇADA 12, 1028X1009, BATEM Tatli, 1012X1011 ÇADA 6) were investigated. As the average the greatest yield (8039.31 kg ha-1), low number of live larva + pupa per plant (2.36), tunnel length (4.26 cm) were observed in I100 x BATEM Tatli interaction while the lowest yield (1917.00 kg ha-1) values were observed in I35 x 1025x1026 ÇADA13 interaction. The largest Mediterranean corn borer and European corn borer population was observed in full irrigation (I100) and the lowest population was observed in excessive water deficit (I35) treatment. The Mediterranean corn borer and European corn borer preferred the 1025x1026 ÇADA 13 line. It was concluded that the lines should be tested under water-stressed and non-water-stressed conditions for resistance to the Mediterranean corn borer, European corn borer and live larva, tunnel length and proline content could be used as a screening parameter. © by PSP